随便写写今天一些知识点（二）．

1.判断输入的文本必须为数字.

txtNewsPageWordTotal.Attributes["onkeyup"]=@"value=value.replace(/[^/d]/g,'')"; // 正则表达式匹配是否为数字
txtNewsPageWordTotal.Attributes["onbeforepaste"]=@"clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))";

2. .样式表增加button的渐变效果

btnSave.Attributes["onmouseout"]="this.className='btn_24'";
btnSave.Attributes["onmouseover"]="this.className='btn_hover24'";
//获取客户端脚本,并把传递的参数返回服务器端执行.
btnSave.Attributes.Add("onclick","this.disabled='true';"+GetPostBackEventReference(btnSave));

3.复选框的值选定 定义为bit型

chkIsAuditing.Checked = bool.Parse(rs["IsAuditing"].ToString()); // 这样就可以实现是否为选中.

4. 2) private void setSelectClass()//绑定 类别选框
{
DBConn myDB = new DBConn();
string mySql = "select CID,CName from Category order by CID desc";
ddlClass.DataSource = myDB.getDataReader( mySql );
ddlClass.DataTextField = "CName";
ddlClass.DataValueField = "CID";
ddlClass.DataBind();
myDB.Close();

ddlClass.Items.Insert(0,new ListItem("所有分类","-1"));